@font-face {
  font-family: 'Roboto Mono';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url(https://fonts.gstatic.com/s/robotomono/v31/L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_gPqPQw.ttf) format('truetype');
}